Consider the Diamond GZV4000 switcher.
Takes 40 amp peaks and 30 continious.
Has a lighted meter to see either voltage or current.
Voltage out is adjustable 5 to 15 volts.
Front panel 6 amp terminals and car type 10 amp outlet for utility uses and rear binding posts for high current application..
Fan cooled.
Instant shutdown on a short without big current draw.
The rateing for continious use is 15v X 30a = 450 watts DC.
Peak is 15 x 40 = 600 watts.
DLS-55 IOTA which can be turned up to 15vdc easily and the IOTA is $15 less on egay.
SPECIFICATIONS
DC Output Voltage (No Load) approx. 13.6V (DC)
Output Voltage Tolerance (No Load) + or - .7%
Output Amperage, Max Continuous 55 Amps
Output Voltage (Full Load) approx. >13.4V (DC)
Maximum Power Output, Continuous 750 Watts
Ripple and Noise <50 mV rms
Input Voltage Range 108-132V (AC)
Input Voltage Frequency 47-63
Maximum AC Current @ 108VAC 13.4 Amps
Typical Efficiency >80%
Max Inrush Current, Single Cycle 30 Amps
Short Circuit Protection Yes
Overload Protection >100%
Line Regulation 100 mV rms
Load Regulation <1.5%
Fan Control Proportional
Thermal Protection YES
Working Temperature Range 0° - 40°C
Storage Temperature -20° to 80°C
Withstand Voltage (VDC)* 1700/1700/500
Dimensions 9.7" x 6.7" x 3.4"
Weight 5.0 lbs
GZV4000 Switching Mode DC Power Supply
Special Features:
• Size: 8.25" x 4.5" x 13"
• Weight: 8 lbs.
• 40 Amp Continuous Rating, 100% Duty Cycle
• Variable Voltage Control 5-15 VDC
• Voltage Control Knob has center detent at 13.5 VDC
• Overload & short-circuit protection with Current Foldback at approximately 42 Amp
• Over Temperature Protection; variable speed fan automatically controlled for quiet operation
• Meter Selector allows monitoring of voltage & current
• Access to front panel DC terminals and cigarette lighter jack; standard 40A terminals on rear panel
• Built-in 8W speaker
• Circuitry yields high RFI protection from external sources
• AC line filter for EMI protection
• Standard 3-wire heavy duty line cord
• Power Indicator & Overload Indicator
• Accepts 120 VAC ± 20% 50-60 cps (Not compatible with 220V)
• Ripple & Noise less than 8 mV r.m.s.
• 1 Year Limited Warranty